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Anomalous Residual Stresses

Published online by Cambridge University Press:  06 March 2019

R. E. Ricklefs and
W. P. Evans
R. E. Ricklefs
Affiliation:
Caterpillar Tractor Company Peoria, Illinois
W. P. Evans
Affiliation:
Caterpillar Tractor Company Peoria, Illinois
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Abstract

Residual stresses were measured in hardened and tempered specimens after unidirectional plastic extension. X-ray and strain gage-layer removal methods were compared. Anomalous residual stresses were found in extended samples at hardnesses of Rc 32–35. The X-ray method indicated compressive residual stresses of nearly constant magnitude through ⅓ the thickness of flat samples, while the strain gagelayer removal method indicated that no macrostress existed. A constant anomalous residual stress was also seen by X-ray through ⅗ the thickness of a cylindrical specimen deformed uniformly in tension. Little or no anomalous stress was found in an extended specimen at Re 55 or in a specimen at Rc 44 after uniform bending.

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Type
Research Article
Information
Advances in X-Ray Analysis , Volume 10: Fifteenth Annual Conference on Applications of X-ray Analysis, August 10-12, 1966 , 1966, pp. 273 - 283
Copyright
Copyright © International Centre for Diffraction Data 1966

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